/* ════════════════════════════
   FOOTER
════════════════════════════ */

footer {
  position: relative;
  background-image: url('circuit.jpg');
  background-size: cover;
  background-position: center;
  color: #fff;
  padding: clamp(50px, 7vw, 80px) 5% clamp(20px, 3vw, 40px);
}

footer::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(1, 10, 30, 0.85);
  pointer-events: none;
  z-index: 0;
}

footer * {
  position: relative;
  z-index: 1;
  box-sizing: border-box;
}

/* ── Layout ── */

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1px 1fr 1fr;
  gap: clamp(24px, 4vw, 50px);
  align-items: center;
  padding-bottom: clamp(30px, 4vw, 50px);
}

/* ── Séparateur vertical ── */

.footer-sep {
  align-self: stretch;
  min-height: 120px;
  background: rgba(0, 153, 255, 0.2);
}

/* ── Brand ── */

.footer-brand-name {
  font-family: 'DM Serif Display', serif;
  font-size: clamp(1.6rem, 2.5vw, 2.2rem);
  font-weight: 400;
  background: linear-gradient(135deg, #fff 0%, #4ab3ff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin: 0 0 14px 0;
}

.footer-brand p {
  font-size: 13px;
  line-height: 1.75;
  color: rgba(180, 210, 255, 0.6);
  max-width: 300px;
  margin: 0 0 16px 0;
}

.footer-tagline {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--blue-light, #4ab3ff);
  border: 1px solid rgba(0, 153, 255, 0.3);
  padding: 5px 12px;
  border-radius: 20px;
}

/* ── Colonnes ── */

.footer-col h3 {
  margin: 0 0 18px 0;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: lightskyblue;
}

.footer-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-col ul li {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
  font-size: 13px;
  color: rgba(200, 220, 255, 0.75);
}

.footer-dot {
  flex-shrink: 0;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--blue, #0072bc);
  box-shadow: 0 0 6px rgba(0, 114, 188, 0.8);
}

/* ── Contact ── */

.footer-contact {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 13px;
  font-size: 13px;
  color: rgba(200, 220, 255, 0.75);
}

.footer-contact i {
  flex-shrink: 0;
  width: 14px;
  margin-top: 2px;
  color: var(--blue-light, #4ab3ff);
}

/* ── Liens ── */

footer a {
  color: rgba(200, 220, 255, 0.75);
  text-decoration: none;
  transition: color 0.2s ease;
}

footer a:hover {
  color: var(--blue-light, #4ab3ff);
}

/* ── Barre du bas ── */

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px 16px;
  padding-top: 20px;
  border-top: 1px solid rgba(0, 153, 255, 0.15);
  font-size: 12px;
  color: rgba(180, 210, 255, 0.4);
  text-align: center;
}

.footer-bottom a {
  color: rgba(180, 210, 255, 0.5);
}

.footer-bottom a:hover {
  color: var(--blue-light, #4ab3ff);
}

.footer-sep-bar {
  opacity: 0.3;
}